(Zygorhiza_kochii,((Patriocetus_ehrlichii,Physeter_catodon),(((Chonecetus_goedertorum,(Aetiocetus_cotylalveus,Aetiocetus_polydentatus,Aetiocetus_weltoni)),(Janjucetus_hunderi,Mammalodon_colliveri)),(((Diorocetus_hiatus,(Parietobalaena_palmeri,(Diorocetus_chichibuensis,(Aglaocetus_patulus,Parietobalaena_yamaokai,(Aglaocetus_moreni,(Cophocetus_oregonensis,Uranocetus_gramensis,(Pelocetus_calvertensis,(Isanacetus_laticephalus,(Titanocetus_sammarinensis,(Pinocetus_polonicus,(Caperea_marginata,(((Parabalaenoptera_baulinensis,(Archaebalaenoptera_castriarquati,Protororqualus_cuvierii,(Megaptera_hubachi,(Megaptera_miocaena,Megaptera_novaeangliae)))),(Balaenoptera_edeni,((Balaenoptera_physalus,(Balaenoptera_borealis,(Balaenoptera_acutorostrata,Balaenoptera_bonaerensis))),(Balaenoptera_siberi,(Balaenoptera_musculus,Balaenoptera_omurai))))),(Eschrichtioides_gastaldii,Eschrichtius_robustus))),(Mixocetus_elysius,(Cetotherium_megalophysum,Cetotherium_vandelli,Joumocetus_shimizui,(Metopocetus_durinasus,Piscobalaena_nana,(Herpetocetus_transatlanticus,Nannocetus_eremus)),(Cetotherium_riabinini,Cetotherium_rathkii),(Brandtocetus_chongulek,(Eucetotherium_helmersenii,Kurdalagonus_mchedlidzei)))))))))))))),(Balaena_ricei,Balaena_mysticetus,(Balaenella_brachyrhynus,(Balaenula_astensis,Eubalaena_glacialis,Eubalaena_shinshuensis)))),(Eomysticetus_whitmorei,Mauicetus_lophocephalus)))));